966997855 has 8 divisors (see below), whose sum is σ = 1210849632. Its totient is φ = 739963488.

The previous prime is 966997817. The next prime is 966997877. The reversal of 966997855 is 558799669.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 966997855 - 2¹³ = 966989663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4204224 + ... + 4204453.

It is an arithmetic number, because the mean of its divisors is an integer number (151356204).

Almost surely, 2^966997855 is an apocalyptic number.

966997855 is a deficient number, since it is larger than the sum of its proper divisors (243851777).

966997855 is a wasteful number, since it uses less digits than its factorization.

966997855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8408705.

The product of its digits is 36741600, while the sum is 64.

The square root of 966997855 is about 31096.5891216384. The cubic root of 966997855 is about 988.8760004749.

The spelling of 966997855 in words is "nine hundred sixty-six million, nine hundred ninety-seven thousand, eight hundred fifty-five".